Effective 11/1/07, Revised 1/1/09, Revised 8/1/09
14
Unique
PMO
Plus
®
Series Sanitary Mixproof Valve Instruction Manual
Think
Top
®,
Digital 8-30 or 110 VAC NO/NC
Automation
Features
Tolerance
The tolerance band is ±1.5 mm.
Built-In Maintenance Monitor
The unit can be preset to indicate when the time for mainte-
nance of the valve has been reached. A status signal and lash-
ing maintenance LED can be programmed to return after 3, 6,
9 or 12 months or more.
Other Features
Another very important fact is that the setup is kept until pro-
grammed otherwise even during failure in the power supply.
The accurate sensor system enables indication of seat lift to be
integrated in the top unit.
Materials
Plastic Parts:
Nylon PA 12.
Steel part
Stainless steel AISI 304 and
316.
Seals
Nitrile (NBR). EPDM rubber for
SMP-EC activator stem.
Technical Data
Sensor accuracy:
± 0,1 mm (0.0004 inch)
Distance to magnet:
5 ± 3 mm (0.12 ± 0.2 inch)
Stroke length:
0.1 - 80 mm (0.004 - 3.15
inch)
Electrical Connection
Direct cable gland entry (hard wired) PG11 (Ø4 - Ø10mm)
(Ø0.16 - Ø0.39 inch).
Terminals
The terminal row of the sensor unit is equipped with screw
terminals for both internal as well as external cables and wires.
The terminals are suitable for wires up to 0.75mm
2
(AWG19).
Power Supply - AC
The
Think
Top® is designed to be a part of the PLC's Input/
Output (I/O) system. It should be supplied from the same pro-
tected power supply as the other I/O devices. The I/O power
supply should not be used for other kinds of loads.
The unit is reversed polarity and short circuit protected. The
power supply must meet the requirements of EN 61131-2.
Supply voltage:
8-30 or 100 - 126.5 VAC
Supply voltage nominal:
24 or 110 VAC (+15%, -10%)
- pr. EN 61131-2
Supply voltage absolute max:
30 or 126.5 VAC
Supply voltage absolute min:
8 or 100 VAC
Power consumption*):
Max. 1.5 VA (8-30 VAC) or
max. 2.0 VA (110 VAC (for
sensor unit along) (Exclud-
ing current to the solenoids,
external proximity switches
and the PLC input current.)
*)The initial current during power-on is higher. Typical values are
440 mARCS during 10 ms (the irst half cycle) followed by 270
ms at 2 x normal steady state current.
The fulilling of the UL requirements in UL508 requires that
the unit is supplied by an isolating source complying with the
requirements for class 2 power units (UL1310) or class 2 and 3
transformers (UL 1585).
Feedback Signals
Output signals from the sensor unit to be connected digital
interface (PLC).
Nominal voltage:
Must match the selected type
of ThinkTop
®
Load current:
50 mA Typical, 100 mA max.
Voltage drop:
Typical 3V at 50 mA
External Sensors
The external sensors are used for seat-lift supervision when
seat-lift cannot be internally detected. The sensors get their
supply voltage from the terminal row. The output signals from
the sensors are connected to two inputs on the terminal row
on the internal sensor unit. If the actual setup is set for internal
seat-lift, the corresponding external signal is not used, other-
wise the external signal logically controls the corresponding
feedback to the PLC.
Supply voltage:
Must match the selected type
of ThinkTop
®
.
Supply current:
Max. 15 mA per sensor.
Type of sensor:
2 wire VAC (EN60947-5-2)
Cable length:
Max. 3 m. (16.4 ft.)
Polarity
NO or NC function is selected with a jumper between terminals
12 and 13. Jumper present = NO. If changing to NC remove
the jumper and make a power recycle. A power recycle is
always required when changing this function.
